ADS7862

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Dual 500kHz, 12-Bit, 2+2 Ch Simultaneous Sampling Analog-To-Digital Converter

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Product details

Parameters

Resolution (Bits) 12 Number of input channels 4 Sample rate (Max) (kSPS) 500 Interface type Parallel Architecture SAR Input type Differential Multi-channel configuration Simultaneous Sampling Rating Catalog Reference mode Ext, Int Input range (Max) (V) 5.25 Input range (Min) (V) 0 Features Operating temperature range (C) -40 to 85 Power consumption (Typ) (mW) 25 Analog voltage AVDD (Min) (V) 4.75 Analog voltage AVDD (Max) (V) 5.25 INL (Max) (+/-LSB) 1 Digital supply (Min) (V) 4.75 Digital supply (Max) (V) 5.25 open-in-new Find other Precision ADCs (<=10MSPS)

Package | Pins | Size

TQFP (PBS) 32 49 mm² 7 x 7 open-in-new Find other Precision ADCs (<=10MSPS)

Features

  • 4 INPUT CHANNELS
  • FULLY DIFFERENTIAL INPUTS
  • 2 µs TOTAL THROUGHPUT PER CHANNEL
  • GUARANTEED NO MISSING CODES
  • PARALLEL INTERFACE
  • 1MHz EFFECTIVE SAMPLING RATE
  • LOW POWER:40mW
  • APPLICATIONS
    • MOTOR CONTROL
    • MULTI-AXIS POSITIONING SYSTEMS
    • 3-PHASE POWER CONTROL

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Description

The ADS7862 is a dual 12-bit, 500kHz analog-to-digital converter (A/D) with 4 fully differential input channels grouped into two pairs for high speed simultaneous signal acquisition. Inputs to the sample-and-hold amplifiers are fully differential and are maintained differential to the input of the A/D converter. This provides excellent common-mode rejection of 80dB at 50kHz, which is important in high noise environments.

The ADS7862 offers parallel interface and control inputs to minimize software overhead. The output data for each channel is available as a 12-bit word. The ADS7862 is offered in an TQFP-32 package and is fully specified over the –40°C to +85°C operating range.

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Technical documentation

= Top documentation for this product selected by TI
No results found. Please clear your search and try again. View all 8
Type Title Date
* Datasheet Dual 500kHz,12-Bit, 2 + 2 Channel Simultaneous Sampling A/D Converter datasheet (Rev. B) Aug. 26, 2005
White papers Best of Baker's Best: Precision Data Converters -- SAR ADCs May 21, 2015
Application notes Using a SAR A/D Converter for Current Measurement in Motor Control Applications (Rev. A) May 18, 2015
Application notes Determining Minimum Acquisition Times for SAR ADCs, part 2 Mar. 17, 2011
Application notes Determining Minimum Acquisition Times for SAR ADCs, part 1 (Rev. A) Nov. 10, 2010
Application notes Interfacing the ADS786x to TMS470 Processors Jul. 10, 2006
Application notes Interfacing the ADS786x to the MSP430F2013 Jun. 15, 2006
Application notes Reading Data from the ADS7862 Aug. 26, 2005

Design & development

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Design tools & simulation

SIMULATION TOOLS Download
PSpice® for TI design and simulation tool
PSPICE-FOR-TI — PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
Features
  • Leverages Cadence PSpice Technology
  • Preinstalled library with a suite of digital models to enable worst-case timing analysis
  • Dynamic updates ensure you have access to most current device models
  • Optimized for simulation speed without loss of accuracy
  • Supports simultaneous analysis of multiple products
  • (...)
SIMULATION TOOLS Download
SPICE-based analog simulation program
TINA-TI TINA-TI provides all the conventional DC, transient and frequency domain analysis of SPICE and much more. TINA has extensive post-processing capability that allows you to format results the way you want them. Virtual instruments allow you to select input waveforms and probe circuit nodes voltages (...)
document-generic User guide
CALCULATION TOOLS Download
Analog-to-digital converter (ADC) input driver design tool supporting multiple input types
ADC-INPUT-CALC ADC-INPUT-CALC is an online tool that provides support for designing the input buffer to an analog-to-digital converter (ADC). It offers 24 different op-amp based buffer circuits that can be used to drive an ADC input. The available topologies cover differential, single-ended and transformer-coupled (...)
CALCULATION TOOLS Download
Analog engineer's calculator
ANALOG-ENGINEER-CALC — The Analog Engineer’s Calculator is designed to speed up many of the repetitive calculations that analog circuit design engineers use on a regular basis. This PC-based tool provides a graphical interface with a list of various common calculations ranging from setting op-amp gain with feedback (...)
Features
  • Expedites circuit design with analog-to-digital converters (ADCs) and digital-to-analog converters (DACs)
    • Noise calculations
    • Common unit translation
  • Solves common amplifier circuit design problems
    • Gain selections using standard resistors
    • Filter configurations
    • Total noise for common amplifier configurations
  • (...)

CAD/CAE symbols

Package Pins Download
TQFP (PBS) 32 View options

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